- you have no life - and you can PROVE it mathematically.
- you enjoy pain.
- you know vector calculus but you can't remember how to do long division.
- you chuckle whenever anyone says "centrifugal force."
- you've actually used every single function on your graphing calculator.

- when you look in a mirror, you see a engineering major.
- it is sunny and 70 degrees outside, and you are working on a computer.
- you frequently whistle the theme song to "MacGyver."
- you always do homework on Friday nights.
- you know how to integrate a chicken and can take the derivative of water.
- you think in "math."
- you've calculated that the World Series actually diverges.
- you hesitate to look at something because you don't want to break down its wave function.
- you have a pet named after a scientist.
- you laugh at jokes about mathematicians.
- the Humane society has you arrested because you actually performed the Schrodinger's Cat experiment.
- you can translate English into Binary.
- you can't remember what's behind the door in the science building which says "Exit."
- you have to bring a jacket with you, in the middle of summer, because there's a wind-chill factor in the lab.
- you are completely addicted to caffeine.
- you avoid doing anything because you don't want to contribute to the eventual heat-death of the universe.
- you consider ANY non-science course "easy."
- when your professor asks you where your homework is, you claim to have accidentally determined its momentum so precisely, that according to Heisenberg it could be anywhere in the universe.
- the "fun" center of your brain has deteriorated from lack of use.
- you'll assume that a "horse" is a "sphere" in order to make the math easier.
- you understood more than five of these indicators.
- you make a hard copy of this list, and post it on your door.